4-Toluenesulfonyl chloride → HCID 18920422, Verbindung

HRID 1289139Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1289139
[OH:1][CH2:2][CH2:3][C:4]#[C:5][C:6]1[S:10][C:9]([C:11]2[S:12][CH:13]=[CH:14][CH:15]=2)=[CH:8][CH:7]=1.[CH3:16][C:17]1[CH:22]=[CH:21][C:20]([S:23]([Cl:26])(=[O:25])=[O:24])=[CH:19][CH:18]=1>N1C=CC=CC=1>[S:23]([O:1][CH2:2][CH2:3][C:4]#[C:5][C:6]1[S:10][C:9]([C:11]2[S:12][CH:13]=[CH:14][CH:15]=2)=[CH:8][CH:7]=1)([C:20]1[CH:21]=[CH:22][C:17]([CH3:16])=[CH:18][CH:19]=1)(=[O:25])=[O:24].[Cl:26][CH2:2][CH2:3][C:4]#[C:5][C:6]1[S:10][C:9]([C:11]2[S:12][CH:13]=[CH:14][CH:15]=2)=[CH:8][CH:7]=1

Komponenten

5

Edukt 2

HCID 73974-Toluenesulfonyl chlorideHCID 4403575-(4-Hydroxybut-1-ynyl)-2,2'-bithiophene

Produkt 2

HCID 18920422HCID 18920422, VerbindungHCID 18920450HCID 18920450, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

8.48 g of 5-(4-hydroxy-1-butynyl)-2,2'-bithiophene was dissolved in 100 ml of pyridine. 16 g of p-tosyl chloride was added in under nitrogen gas atmosphere. After stirred overnight, the pyridine was evaporated under reduced pressure. The reside was extracted with ethyl acetate (100 ml) twice, filtered, washed with water (100 ml) twice, HCl solution twice (5%, 100 ml) and water (100 ml) twice again. The organic layer dried over anhydrous magnesium sulfate was filtered and the solvent thereof was evaporated. The residual solid was further purified by rapid silica gel column chromatography. From the eluate of ethyl acetate/n-hexane (1/6). 6.25 g of 5-(4-tosyloxy-1-butynyl)-2,2'-bithiophene and 1.48 g of 5-(4-chloro-1-butynyl)-2,2'-bithiophene were respectively obtained and the yield thereof was 44% and 16%.

Aufarbeitung

  1. customthe pyridine was evaporated under reduced pressure
  2. extractionThe reside was extracted with ethyl acetate (100 ml) twice
  3. filtrationfiltered
  4. washwashed with water (100 ml) twice
  5. dry with materialThe organic layer dried over anhydrous magnesium sulfate
  6. filtrationwas filtered
  7. customthe solvent thereof was evaporated
  8. customThe residual solid was further purified by rapid silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-92d4e7d1ddd44e1886e84ecd390d5cbc
Quelldatensatz
uspto-grants-1998_05
Patentnummer
US05747525

Notizen zur Reaktion

Wird geladen…